US4134506A - Material handling means for use in earthworking machines - Google Patents

Material handling means for use in earthworking machines Download PDF

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Publication number
US4134506A
US4134506A US05/859,365 US85936577A US4134506A US 4134506 A US4134506 A US 4134506A US 85936577 A US85936577 A US 85936577A US 4134506 A US4134506 A US 4134506A
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US
United States
Prior art keywords
bucket
recesses
machine structure
frame
earthworking machine
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US05/859,365
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English (en)
Inventor
Gerald P. Simmons
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Caterpillar Inc
Original Assignee
Caterpillar Tractor Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Caterpillar Tractor Co filed Critical Caterpillar Tractor Co
Priority to US05/859,365 priority Critical patent/US4134506A/en
Priority to DE19772758932 priority patent/DE2758932A1/de
Priority to ZA00783663A priority patent/ZA783663B/xx
Priority to CA306,331A priority patent/CA1084004A/en
Priority to JP14670478A priority patent/JPS5486901A/ja
Application granted granted Critical
Publication of US4134506A publication Critical patent/US4134506A/en
Assigned to CATERPILLAR INC., A CORP. OF DE. reassignment CATERPILLAR INC., A CORP. OF DE. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: CATERPILLAR TRACTOR CO., A CORP. OF CALIF.
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/36—Component parts
    • E02F3/40—Dippers; Buckets ; Grab devices, e.g. manufacturing processes for buckets, form, geometry or material of buckets
    • E02F3/401—Buckets or forks comprising, for example, shock absorbers, supports or load striking scrapers to prevent overload
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/34—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets with bucket-arms, i.e. a pair of arms, e.g. manufacturing processes, form, geometry, material of bucket-arms directly pivoted on the frames of tractors or self-propelled machines
    • E02F3/3405—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets with bucket-arms, i.e. a pair of arms, e.g. manufacturing processes, form, geometry, material of bucket-arms directly pivoted on the frames of tractors or self-propelled machines and comprising an additional linkage mechanism
    • E02F3/3411—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets with bucket-arms, i.e. a pair of arms, e.g. manufacturing processes, form, geometry, material of bucket-arms directly pivoted on the frames of tractors or self-propelled machines and comprising an additional linkage mechanism of the Z-type

Definitions

  • This invention relates to earthworking machines and in particular to material handling means for use therein.
  • Eddie B. Wagner in U.S. Pat. No. 2,835,397, shows a loader wherein the bucket rests on the ground in a loading position and wherein the bucket includes inwardly extending portions in the front wall for receiving front portions of the bucket supporting structure.
  • the bucket also includes a central inwardly extending portion extending upwardly from the bottom of the bucket and from front to rear thereof for receiving a hydraulic cylinder for tipping the bucket.
  • the present invention comprehends an improved earthworking machine having a bucket including a rear portion defining a plurality of rearwardly opening recesses to receive at least a substantial portion of the arm means of the connecting linkage to the bucket in a retracted disposition of the bucket in the machine.
  • the bucket further defines recesses arranged to receive a portion of the front wheels of the machine in the retracted disposition of the bucket.
  • the bucket is arranged to receive a lesser portion of the front wheels in the loading disposition of the bucket to effectively minimize the forward extension of the bucket in normal use.
  • the rear portion of the bucket defining the recesses is rounded so as to permit a rocking of the bucket from the loading position to the rack-back position for facilitated breaking free of the material being handled by the machine.
  • the recessed disposition of the control arms permits the rocking of the bucket free of interference between the arms and the subjacent terrain.
  • the bucket rear wall is arranged to receive both the tilt arm and lift arm means of the connecting linkage in the illustrated embodiment.
  • the earthworking machine structure of the present invention is extremely simple and economical of construction while yet providing the highly improved low profile facilitated rocking bucket functioning discussed above.
  • FIG. 1 is a fragmentary perspective view of an earthworking machine embodying the invention
  • FIG. 2 is a fragmentary side elevation of the bucket and connecting means
  • FIG. 3 is a fragmentary side elevation illustrating the arrangement of the bucket and connecting means in a rackback position in broken lines and a lifted position in full lines.
  • an earthworking machine generally designated 10 is fragmentarily shown to comprise a wheeled vehicle 11 having a pair of front wheels 12 at opposite sides of a frame 13 of the vehicle.
  • a bucket generally designated 14, illustratively comprising a loader bucket having a front wall 15, a rear wall 16, left sidewall 17 and right sidewall 18 defining a loading space 19 is mounted to the frame 13 by a connecting linkage generally designated 20.
  • the invention comprehends a novel cooperative association of the bucket and connecting linkage to provide a low profile machine, as illustrated in FIG. 1 of the drawing, wherein the bucket is disposed in effectively nested relationship with the front portion of the vehicle 11 in the loading disposition so as to provide a compact, easily handled arrangement.
  • the low profile arrangement further permits for improved viewability by the operator of the machine providing for improved efficiency in the use of the machine.
  • the nested arrangement permits application of substantial earthmoving forces with minimum machine tipping tendencies.
  • the rear wall 16 is provided with three pairs of rearwardly opening recess portions, namely, recess portions 21, 22 and 23.
  • Recess portion 21 is disposed at opposite sides of the rear wall 16 and defines recesses 24 for receiving a portion of the front wheels 12 and providing the rearwardly nested arrangement of the bucket relative to vehicle 11.
  • Recess portions 22 define rearwardly opening recesses 25 for receiving portions of the lift arms 26 of the connecting linkage 20.
  • Recess portions 23 define rearwardly opening recesses 27 for receiving portions of the tilt arms 28 of the connecting linkage 20.
  • recess portions 22 are disposed inwardly of recess portions 21 and recess portions 23 are disposed adjacently inwardly of recess portions 22 at the opposite sides of the bucket.
  • the bucket includes a transverse beam portion 29 at the upper end of the rear wall 16 which provides improved corner loading of the bucket to effectively prevent collapsing of the bucket in rigorous use.
  • the tilt arm recess 24 extends upwardly into the beam portion 29 of the bucket. As shown, the recess 24 terminates at the upper end of the rear wall 16 subjacent the beam portion 29.
  • the connecting linkage 20 may further include the conventional lift cylinders 30 and tilt cylinders 31 which may be suitably pivotally linked between the arms 26 and 28, respectively, and in tower assembly 32, mounted to the frame 13.
  • Tilt arm 28 may include a distal link portion 33 pivotally connected to the bucket by means of a pivot means 34 on recess portion 23, and arm 26 may be connected to the bucket by a pivot means 35 on recess portion 22.
  • the front wall 15 rests in substantial facial engagement with the subjacent terrain surface 36.
  • the bucket is arranged to be rocked about the rounded rear wall 16 by the connecting linkage so as to provide a lever action in releasing the collected material for subsequent lifting thereof by the earthworking machine.
  • the linkage rocks the bucket from the loading position of FIG. 2 to the rack-back position shown in broken lines in FIG. 3 about the rounded rear wall 16 so as to provide the highly desirable rocking-type leverage action.
  • the recesses 24 accommodate reception of a greater portion of the vehicle wheels until, as shown in FIG.
  • the wheels are effectively extended to substantially fully nested within the recesses 24. As shown in FIG. 2, a small portion of the wheels may be received within the recesses 24 in the loading position, if desired. It is to be understood that the bucket can also be used in a conventional manner wherein the bucket is fulcrumed about the front axle.
  • the upper portion of the tilt arms 28 are received within the beam portion 29 of the bucket when the bucket is in the rack-back position and elevated position of FIG. 3.
  • the provision of the recess portions of the bucket in only the rear wall 16 thereof provides for effectively maximizing the available face within the bucket for material loading purposes while yet permitting the bucket to be disposed with effectively minimum forward projection from the vehicle portion of the machine.
  • a large capacity loading operation may be effected with minimum tipping tendencies, thereby providing highly improved safety in the use of the earthworking machine in such relatively dangerous fields, such as mining and the like.
  • the low profile provides further advantage in such mining operations in permitting minimizing of the height of the area being mined to accommodate the machine.
  • the rocking-type action utilizing a lever or fulcrum principle in freeing the earth being removed by the machine provides substantially increased force availability for further facilitated earthworking efficiency.
  • the rocking action effectively minimizes tipping tendencies in the earth removing operations further providing improved safety in the use of the machine.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Shovels (AREA)
  • Handcart (AREA)
US05/859,365 1977-12-13 1977-12-13 Material handling means for use in earthworking machines Expired - Lifetime US4134506A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
US05/859,365 US4134506A (en) 1977-12-13 1977-12-13 Material handling means for use in earthworking machines
DE19772758932 DE2758932A1 (de) 1977-12-13 1977-12-30 Materialhandhabungsmittel fuer erdbearbeitungsmaschinen
ZA00783663A ZA783663B (en) 1977-12-13 1978-06-27 Material handling means for use in earthworking machines
CA306,331A CA1084004A (en) 1977-12-13 1978-06-27 Material handling means for use in earthworking machines
JP14670478A JPS5486901A (en) 1977-12-13 1978-11-29 Working device used for earthhmoving machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/859,365 US4134506A (en) 1977-12-13 1977-12-13 Material handling means for use in earthworking machines

Publications (1)

Publication Number Publication Date
US4134506A true US4134506A (en) 1979-01-16

Family

ID=25330745

Family Applications (1)

Application Number Title Priority Date Filing Date
US05/859,365 Expired - Lifetime US4134506A (en) 1977-12-13 1977-12-13 Material handling means for use in earthworking machines

Country Status (5)

Country Link
US (1) US4134506A (en, 2012)
JP (1) JPS5486901A (en, 2012)
CA (1) CA1084004A (en, 2012)
DE (1) DE2758932A1 (en, 2012)
ZA (1) ZA783663B (en, 2012)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1473416B1 (en) * 2003-04-30 2006-06-07 Leonardi Benne di Leonardi Valter A bucket, or in general a container, for transporter vehicles, having a variable-shape transversal section
US11668067B2 (en) 2017-10-31 2023-06-06 Epiroc Rock Drills Aktiebolag Lifting arrangement and loading machine for underground applications

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2835397A (en) * 1955-06-27 1958-05-20 Mixermobile Manufacturers Inc Loader
US2978124A (en) * 1957-10-11 1961-04-04 Gen Motors Corp Cradle loader
US3240371A (en) * 1964-07-28 1966-03-15 Clark Equipment Co Inching control system for a vehicle
US3369680A (en) * 1966-07-18 1968-02-20 Caterpillar Tractor Co Large capacity loader bucket
US3845870A (en) * 1972-03-27 1974-11-05 Balderson Inc Landfill bucket

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2835397A (en) * 1955-06-27 1958-05-20 Mixermobile Manufacturers Inc Loader
US2978124A (en) * 1957-10-11 1961-04-04 Gen Motors Corp Cradle loader
US3240371A (en) * 1964-07-28 1966-03-15 Clark Equipment Co Inching control system for a vehicle
US3369680A (en) * 1966-07-18 1968-02-20 Caterpillar Tractor Co Large capacity loader bucket
US3845870A (en) * 1972-03-27 1974-11-05 Balderson Inc Landfill bucket

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1473416B1 (en) * 2003-04-30 2006-06-07 Leonardi Benne di Leonardi Valter A bucket, or in general a container, for transporter vehicles, having a variable-shape transversal section
US11668067B2 (en) 2017-10-31 2023-06-06 Epiroc Rock Drills Aktiebolag Lifting arrangement and loading machine for underground applications

Also Published As

Publication number Publication date
JPS5486901A (en) 1979-07-10
DE2758932A1 (de) 1979-06-21
ZA783663B (en) 1979-06-27
JPS633103B2 (en, 2012) 1988-01-21
CA1084004A (en) 1980-08-19

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Legal Events

Date Code Title Description
AS Assignment

Owner name: CATERPILLAR INC., 100 N.E. ADAMS STREET, PEORIA, I

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:CATERPILLAR TRACTOR CO., A CORP. OF CALIF.;REEL/FRAME:004669/0905

Effective date: 19860515

Owner name: CATERPILLAR INC., A CORP. OF DE.,ILLINOIS

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:CATERPILLAR TRACTOR CO., A CORP. OF CALIF.;REEL/FRAME:004669/0905

Effective date: 19860515